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Method for automatically switching over night scene mode and image pickup device

A technology for automatic switching and camera equipment, applied in the field of photography, can solve the problem that camera equipment cannot automatically switch to night scene mode, etc., to achieve the effect of increasing image brightness and increasing exposure time

Inactive Publication Date: 2010-07-14
HUAWEI DEVICE CO LTD
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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a method and camera equipment for automatically switching night scene modes, which are used to solve the problem that camera equipment cannot automatically switch night scene modes in the prior art

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  • Method for automatically switching over night scene mode and image pickup device
  • Method for automatically switching over night scene mode and image pickup device
  • Method for automatically switching over night scene mode and image pickup device

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Embodiment 2

[0033] figure 2 It is a flow chart of the second embodiment of the method for automatically switching the night scene mode according to the embodiment of the present invention. like figure 2 As shown, the method for automatically switching the night scene mode in the embodiment of the present invention includes the following steps:

[0034] Step 201. Obtain parameters related to brightness of each pixel of the preview image.

[0035] After the user turns on the camera device, the camera device first needs to obtain the preview image of the surrounding environment. The camera device can obtain the preview image at a speed of 20 frames / s, and take one frame out of every 5 frames of the preview image as the preview image of the surrounding environment. Obtain the brightness of each pixel in the preview image. The relevant parameter of the brightness of the pixel can be a YUV parameter or an RGB parameter. If it is an RGB parameter, it can be converted to a YUV parameter by fo...

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Abstract

The invention relates to a method for automatically switching over a night scene mode and an image pickup device, wherein the method for automatically switching over the night scene mode comprises the following steps: obtaining the relevant parameters of pixel brightness in a preview image, and calculating the brightness of the preview image; and opening the night scene mode when the brightness of the preview image is lower than a first threshold value. The embodiment of the invention obtains the brightness of the current ambient environment of the shot scenes by the preview image; when the brightness of the ambient environment is lower than the first threshold value, the night scene mode of the image pickup device is opened and the exposure time of a photoreceptor in the image pickup device is increased so as to increase the image brightness and cause that a user automatically obtains the image with the reasonable brightness.

Description

technical field [0001] The invention relates to camera technology, in particular to a method for automatically switching night scene modes and camera equipment. Background technique [0002] When people use a video camera, video camera or other video camera, when the light is relatively dark or at night, they usually turn on the night scene mode of the video camera to enhance the brightness of the captured image. [0003] Night mode is a functional feature of the photoreceptor in the camera device. Its principle is that by adjusting the shutter exposure time, the photoreceptor has a longer time to receive photons from the scene to improve the brightness of the photo. If the night scene mode is turned on, the photo of the scene taken will be brighter than the actual scene, and if the night scene mode is turned off, the brightness of the photo taken of the scene is equivalent to the brightness of the actual scene. [0004] In the prior art, the user manually turns on or off ...

Claims

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Application Information

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IPC IPC(8): H04N5/235H04N5/225
Inventor 郝志明
Owner HUAWEI DEVICE CO LTD
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